These are 3 questions btw so i need 3 answers!

Question

asked Mar 9, 2023 203k views

1 Answer

Rodpl · Answer 1 · 2023-03-16T20:44:42+0000

Answer:

y = -
(7)/(2) cos (
(1)/(2) x ) , y = cos ( 3x ) + 2

Explanation:

Image 1.

The graph is reflection of cosine over x-axis and max is 3.5 ⇒ A = -
(7)/(2)

Period is ( 4 π ) ⇒ B =
(1)/(2)

There are no horizontal and vertical shifts ⇒ C = D = 0

y = -
(7)/(2) cos (
(1)/(2) x )

Image 3.

The graph of cosine shifted 2 units up only ⇒ D = 2 , C = 0

Period of the given function is
$(2\pi )/(3)$ ⇒ B = 3

y = cos ( 3x ) + 2